database puzzle3:

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tellymetwise
Posts: 360
Joined: Mon Sep 22, 2003 3:48 pm

database puzzle3:

Post by tellymetwise » Fri Dec 19, 2003 10:19 am

This position is taken from the Net-Chess database game between:
davidswhite - ncrosswell
2000-12-18

Can black play Rxc3?

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dwhitlow
Posts: 3
Joined: Thu Jun 08, 2000 10:38 am

Post by dwhitlow » Fri Dec 19, 2003 2:09 pm

Here's my guess:


No. White would follow with:

N-f8

if black moves the queen, white responds with:

Ng7+ hxg7
Rh4 mate


if black captures the knight then:

... Rxf8
Re7 Qd8 (to protect the back rank)
Qf7 Rg8 (preventing Qxg7 mate)
Re8 Rxe8
Rxe8+ Qxe8
Qxe8 mate.


of course I could be missing something. As a matter of fact, I usually miss something :)

tellymetwise
Posts: 360
Joined: Mon Sep 22, 2003 3:48 pm

Post by tellymetwise » Fri Dec 19, 2003 3:43 pm

Black happily plays Rxf8, whitlow

dwhitlow
Posts: 3
Joined: Thu Jun 08, 2000 10:38 am

Post by dwhitlow » Fri Dec 19, 2003 4:03 pm

"Black happily plays Rxf8, whitlow"

And once again, I manage to lose a game I wasn't even playing in.....
Oh well.....back to the drawing board.... :shock:

tellymetwise
Posts: 360
Joined: Mon Sep 22, 2003 3:48 pm

Post by tellymetwise » Fri Dec 19, 2003 4:51 pm

dwhitlow wrote:"Black happily plays Rxf8, whitlow"

And once again, I manage to lose a game I wasn't even playing in.....
Oh well.....back to the drawing board.... :shock:
You've seen why your plan doesn't work?

dwhitlow
Posts: 3
Joined: Thu Jun 08, 2000 10:38 am

Post by dwhitlow » Fri Dec 19, 2003 4:55 pm

tellymetwise wrote:
You've seen why your plan doesn't work?
Yes, I'm still plugging away at it.....

sirthursday
Posts: 26
Joined: Sat Oct 11, 2003 3:31 am

Post by sirthursday » Mon Dec 29, 2003 5:12 am

Yes

White can reply in many ways, but the best two are probably 2. Nf8 or 2. Nc5. 2.Nf8 was explained above, so here is what happens with 2. Nc5

2. Nc5, but after 2... Rxe4

if 3.Rxe4 then 3...Rc1++

if 3.Nxd7 then 3...Rxe1++

so the only alternative is Nxe4. This leaves Black a pawn up, although White is threatening to win black's d-pawn.
Black can now play Rc6 and although cramped and defensive, Black is no longer in a dangerous position.
Last edited by sirthursday on Tue Dec 30, 2003 11:39 am, edited 1 time in total.

tellymetwise
Posts: 360
Joined: Mon Sep 22, 2003 3:48 pm

Post by tellymetwise » Mon Dec 29, 2003 12:13 pm

after 1... Rxc3 2.Nc5 Rxe4 white continues with Qxe4, still treathening with mate.

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